{
    rules+: [
         {
            // 进程丢失
            alert: 'process_is_down',
            annotations: {
                message: 'process: {{ $labels.groupname }}, instance: {{ $labels.instance }}.',
                summary: 'process is down',
                runbook: $._config.runbook,
            },
            expr: |||
              sum (namedprocess_namegroup_states) by (groupname, instance, region) == 0
            |||,
            'for': '0m',
            labels: {
                severity: 'warning'
            },
        },
        
    ],
}
